POWERGLIDE TRANSMISSION 4 337 GEAR Transmission Speedometer Driven Gears Only Con t 63 64 Corvette w 3 55 axle 6 70 x 15 65 66 Corvette w 3 55 axle 7 75 x 15 8 15 x 15 red 21 teeth 67 Corvette w 3 55 axle 8 15 x 15 8 45 x 15 67 Corvette w 3 70 axle 3987921 1 95 8 45 x 15 61 64 Corvette w 3 36 axle 6 70 x 16 65 66 Corvette w 3 36 3 31 axle 7 75 x 15 8 15 x 15 blue 20 teeth 67 Corvette w 3 36 axle 8 15 x 15 7 75 x 15 8 45 x 15 67 Corvette w 3 31 axle 3987920 1 80 8 15 x 15 61 66 Corvette w 3 08 axle 6 70 x 15 7 10 x 15 7 75 x 15 65 66 Corvette w 3 07 axle 7 75 x 15 67 Corvette w 3 07 axle 8 15 x 15 8 45 x 15 6 70 x 15 67 Corvette w 3 08 axle 8 15 x 15 8 45 x 15 67 Corvette w 2 73 axle 3987918 1 85 8 15 x 15 8 45 x 15 brown 18 teeth 61 64 Corvette w 3 70 axle 6 70 x 15 67 Corvette w 3 55 axle 7 75 x 15 67 Corvette w 3 70 axle 7 75 x 15 67 Corvette w 3 73 axle 3860345 1 85 8 15 x 15 8 45 x 15 green 22 teeth 67 Corvette w 3 73 axle 3860346 1 90 black 23 teeth 67 Corvette w 4 10 axle 3860348 1 85 7 75 x 15 25 teeth orange 67 Corvette w 4 56 axle 3860033 1 1 81 7 75 x 15 21 teeth 67 Corvette w 3 07 axle 67 Corvette w 3 08 axle 7 75 x 15 67 Corvette w 3 31 axle 8 45 x 15 67 Corvette w 2 73 axle 3987919 1 80 natural 19 teeth 65 Corvette w 2 73 1359273 1 1 01 7 75 x 15 8 15 x 15 brown 39 teeth Note 2 I O TE 2 Used se ective y 4 338 FITTING RETAINER SEAL Speedometer Driven Gear 55 56 Corvette 58 60 Corvette 3708147 1 96 25 B O L 61 67 Corvette 3869914 1 2 50 w seal 55 67 Corvette 3708148 1 11 RETAINER gear fitting 9 ls I D 55 56 Corvette 62 67 Corvette 6264903 1 18 SEAL gear fitting O ring hole plug IB l D 4 342 SHAFT ASSY SHAFT UNIT Speedometer without Casing 53 55 Corvette 6 cyl 1562669 I 1 78 635 B 53 58 Corvette 1563561 1 2 08 685 ta Note 2 VO TE 2 For use with shaft assy 758829 7 55 62 Corvette 8 cyl 6452799 1 61 ta Note 1 NOTE 7 Production shaft on y Not to be confused with service shaft 756356 7 63 67 Corvette 1564778 1 2 02 56 B 53 67 Corvette 6477499 1 3 11 SHAFT UNIT consists of shaft tip AC 615 81 0 L Note 3 I O TE 3 For mode s requiring maximum length of 8 7 cut t0 required length 53 67 Corvette 6478825 1 6 36 SHAFT UNIT 171 O L Note 4 I O TE 4 For mode s requiring length of 8 7 to 7 72 cut to required iength 4 342A SHAFT ASSEMBLY with Casing I OTE Shaft length is genera y 7 icnger than casing dimension iisted 53 67 Corvette 6478131 1 9 62 will fit 76 to 80 53 67 Corvette 6478125 1 7 13 52 to 56 3 880 53 67 Corvette 6478126 1 8 51 56 to 60 53 67 Corvette 6478127 1 8 76 GO to G4 55 67 Corvette 6478128 1 8 91 68 casing 55 57 Corvette 8 cyl exc F l w H L Cam 6478121 1 6 42 40 casing 65 66 Corvette 6478193 1 10 46 120 casing 65 67 Corvette 6478134 1 10 71 92 Z casing 4 343 GEAR Speedometer Drive 55 62 Corvette w 3 08 3 55 axle ratio 63 65 Corvette w 3 08 3 36 axle 66 67 Corvette w 3 07 3 08 3 31 3 36 3 55 3 70 axle 3708144 1 1 83 8 45 x 15 8 teeth 57 62 Corvette w 4 56 axle ratio 67 68 Corvette 4 56 axle w 7 75 x 15 tires 3845079 1 1 83 6 teeth 1 M O D X 29 M thick 66 67 Corvette w 3 31 3 36 3 55 13 70 3 73 axle 66 67 Corvette w 3 55 3 70 3 73 4 10 4 89 axle 7 75 x 15 tires i 1974 GM PARTS DIVISION GENERAL MOTORS CORPORATION CHEVROLET P A 30B i 4 337 4 343 4 68 REV 9 74